Vomiting

Summary

Vomiting occurs when the stomach is forcefully emptied, an occurrence that’s typically considered a symptom of an underlying medical condition.
The mechanics of vomiting are triggered by nerves in the GI tract or the presence of certain chemicals in the bloodstream. Before vomiting, either or both (nerves and/or chemicals) will signal the brain that it’s time to empty the stomach of its contents.

A wide variety of medical conditions can lead to vomiting. Anything from simple motion sickness and dietary indiscretion (like garbage-eating, ingestion of foreign material, and a too-sudden change in diet) to poisoning and specific gastrointestinal ailments (including parasites, gastrointestinal viruses, dietary intolerances, cancers, and congenital abnormalities affecting the GI tract) can occasion vomiting.

Symptoms and Identification

Dogs and cats who vomit will exert abdominal effort in so doing. This is an important factor to observe, as pets who retch and pass ingested content without abdominal effort or nausea are typically regurgitating –– not vomiting. Regurgitation is a completely distinct symptom that must always be differentiated from vomiting as it’s the result of a completely different set of conditions.
Determining the underlying cause is typically the focus of diagnostic testing in the case of vomiting. This may include…

Affected Breeds

No breed predisposition has been noted for vomiting in either dogs or cats. However, some of the underlying causes of vomiting are influenced by genetic factors predisposing pets to these diseases. Therefore, breeds of dogs and cats genetically predisposed to any of vomiting’s underlying conditions will naturally be overrepresented.

Treatment

Treatment varies but usually includes special medications and/or diets to relieve the vomiting itself and treatment to correct any fluid and electrolyte imbalances that occur as a result of vomiting. This, along with whatever treatment is required to address the vomiting’s underlying cause are the typical therapeutic approaches to vomiting. This may include:

Antiemetics

Dewormers and other parasiticides

Antibiotics

Dietary changes

Corticosteroids and/or other drugs

Fluid therapy to rehydrate and reestablish normal electrolyte balance

Antiviral drugs

Hyperthyroidism treatment

Surgical

Puppies and kittens, along with small dogs and cats, merit immediately veterinary attention, as they can become dehydrated very quickly after the onset of vomiting. So, too, should pets showing any signs of diarrhea or lethargy see a veterinarian –– immediately.

Veterinary Cost

The cost of diagnosis and treatment of vomiting depends greatly on its underlying cause. Owners of pets with conditions that require expensive hospitalization, elude easy diagnosis, and/or demand a lifetime of management via medication and or diet (often a very expensive proposition) may face extreme expenses in both the long and short term.

Prevention

Prevention of vomiting is typically undertaken by refraining to offer pets foodstuffs and/or foreign material that do not correspond to their normal dietary repertoire.

Vaccination against specific diseases that lead to vomiting is also strongly recommended by way of effective prevention.

Pets suffering a host of disease states that predispose them to vomiting, however, will typically be unmanageable via these particular methods. In these cases, preventing the underlying cause –– if possible –– is the only rational approach.

References

Benchaoui H, et al. The antiemetic efficacy of maropitant (Cerenia) in the treatment of ongoing emesis caused by a wide range of underlying clinical aetiologies in canine patients in Europe. / Small Anim Pract 2007:48:93-98.